A clinical research study on the effects of nutritional supplementation to combat health consequences associated with Cache Valley’s poor air quality has concluded at Utah State University. The Cache Valley AIR Study, a partnership between the Center for Human Nutrition Studies at Utah State University and USANA Health Sciences, a Utah-based global nutritional supplement company, began in November 2011 with 66 participants.

Winters in the Cache Valley get ugly when inverted temperature gradients trap particulate pollution near the ground, where it can irritate lung tissue and cause health problems. Now a Utah supplement maker is exploiting the state’s notorious inversions to test whether its products reduce inflammation and protect pulmonary function.

LOGAN — Those who live along the Wasatch Front know how bad the air quality can get. It seems the tell- tale lung irritation and scratchy throats have become an unpleasant winter tradition in recent years.

LOGAN — Those who live along the Wasatch Front know how bad the air quality can get. It seems the tell-tale lung irritation and scratchy throats have become an unpleasant winter tradition in recent years.